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cpu: Introduce get_arch_id() method and override it for X86CPU

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get_arch_id() adds possibility for generic code to get a guest-visible
CPU ID without accessing CPUArchState.
If derived classes don't override it, it will return cpu_index.

Override it on target-i386 in X86CPU to return the APIC ID.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: liguang <lig.fnst@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Igor Mammedov 2013-04-23 10:29:41 +02:00 • committed by Andreas Färber
parent b8b7456d6a
commit 997395d388
3 changed files with 18 additions and 0 deletions
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2
include/qom/cpu.h
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@ -45,6 +45,7 @@ typedef struct CPUState CPUState;
* instantiatable CPU type.
* @reset: Callback to reset the #CPUState to its initial state.
* @do_interrupt: Callback for interrupt handling.
* @get_arch_id: Callback for getting architecture-dependent CPU ID.
* @vmsd: State description for migration.
*
* Represents a CPU family or model.
@ -58,6 +59,7 @@ typedef struct CPUClass {
void (*reset)(CPUState *cpu);
void (*do_interrupt)(CPUState *cpu);
int64_t (*get_arch_id)(CPUState *cpu);
const struct VMStateDescription *vmsd;
} CPUClass;